JP7264598B2 - 接着剤組成物及び接続構造体 - Google Patents
接着剤組成物及び接続構造体 Download PDFInfo
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- JP7264598B2 JP7264598B2 JP2018070659A JP2018070659A JP7264598B2 JP 7264598 B2 JP7264598 B2 JP 7264598B2 JP 2018070659 A JP2018070659 A JP 2018070659A JP 2018070659 A JP2018070659 A JP 2018070659A JP 7264598 B2 JP7264598 B2 JP 7264598B2
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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- C—CHEMISTRY; METALLURGY
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- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C—CHEMISTRY; METALLURGY
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- C—CHEMISTRY; METALLURGY
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09J7/255—Polyesters
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- C09J7/35—Heat-activated
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C—CHEMISTRY; METALLURGY
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/83—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
- H01L2224/831—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector the layer connector being supplied to the parts to be connected in the bonding apparatus
- H01L2224/83101—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector the layer connector being supplied to the parts to be connected in the bonding apparatus as prepeg comprising a layer connector, e.g. provided in an insulating plate member
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Description
まず、本発明の一実施形態に係る接着剤組成物の構成について説明する。本実施形態に係る接着剤組成物は、膜形成樹脂と、アクリレート系化合物と、重合開始剤と、カルボジイミド系化合物と、を含む。
(2.1.第1の適用例)
次に、図1及び図2を参照して、本実施形態に係る接着剤組成物の第1の適用例について説明する。図1は、接着剤組成物の第1の適用例を説明する模式図であり、図2は、接着剤組成物の第1の適用例による接着を説明する模式図である。
続いて、図3及び図4を参照して、本実施形態に係る接着剤組成物の第2の適用例について説明する。図3は、接着剤組成物の第2の適用例を説明する模式図であり、図4は、接着剤組成物の第2の適用例による接着を説明する模式図である。
下記表1にて示す材料を混合し、接着剤組成物を調製した。その後、調整した接着剤組成物に導電粒子(平均粒子径4μm、積水化学工業社製AUL704)を分散させた。導電粒子を分散させた接着剤組成物は、乾燥後の接着剤組成物の平均膜厚が10μmになるように、PETフィルムに塗布し、乾燥させた。これにより、異方性接着剤及び異方性導電フィルムとして機能する接着剤組成物および接着フィルムを製造した。例えば、乾燥後の接着剤組成物の平均膜厚が10μmである場合、導電粒子は、個数密度が8000個/mm2となるように調整されて、接着剤組成物に配合されてもよい。導電粒子の個数密度は、200μm×200μm四方の領域を任意に抜き取った10点における導電粒子の個数密度を金属顕微鏡にて観察し、平均値を算出することで求めた。
続いて、上記製造した接着剤組成物を用いて接続構造体を製造した。具体的には、8μm厚みのCuで形成され、Snめっきを施した端子が50μmピッチで配置されたFPC(Flexible Printed Circuit)(厚み38μm)を用意した。また、表面の全域に亘って酸化インジウムスズ(ITO)がコーティングされたガラス基板(厚み0.7mm)を用意した。
以上で製造した接続構造体について、導通抵抗、接着強度及び圧痕信頼性を評価した。なお、導通抵抗及び接着強度は、初期及び信頼性試験後でそれぞれ評価した。信頼性試験は、環境試験条件として温度85℃/湿度85%RHを用い、接続構造体を前述の高温高湿下で500時間放置することで行った。なお、信頼性試験には、環境試験機(恒温恒湿器、エスペック社製PRシリーズ)を用いた。
12 異方性導電接続フィルム
20、30 被接着物
100 接着層
101 接着剤組成物
102 導電粒子
110 ベースフィルム
210、310 端子
Claims (15)
- 膜形成樹脂と、
アクリレート系化合物と、
重合開始剤と、
カルボジイミド系化合物と、
を含有し、
前記膜形成樹脂又は前記アクリレート系化合物の少なくとも1つ以上は、カルボキシ基を有する化合物であり、
前記膜形成樹脂は、ポリエステル樹脂又はポリウレタン樹脂であり、
前記膜形成樹脂の酸価は、1KOHmg/g以上であり、
前記カルボジイミド系化合物の含有量は、前記カルボキシ基を有する化合物の総質量に対して、0.1質量%以上150質量%以下である、接着剤組成物。 - 膜形成樹脂と、
アクリレート系化合物と、
重合開始剤と、
カルボジイミド系化合物と、
を含有し、
前記膜形成樹脂又は前記アクリレート系化合物の少なくとも1つ以上は、カルボキシ基を有する化合物であり、
前記膜形成樹脂は、ポリエステル樹脂又はポリウレタン樹脂であり、
前記カルボジイミド系化合物の含有量は、前記カルボキシ基を有する化合物の総質量に対して、5質量%以上150質量%以下であり、
当該接着剤組成物は、熱硬化性接着剤である接着剤組成物。 - 膜形成樹脂と、
アクリレート系化合物と、
重合開始剤と、
カルボジイミド系化合物と、
導電粒子と、
を含有し、
前記膜形成樹脂又は前記アクリレート系化合物の少なくとも1つ以上は、カルボキシ基を有する化合物であり、
前記カルボジイミド系化合物の含有量は、前記カルボキシ基を有する化合物の総質量に対して、0.1質量%以上150質量%以下であり、
当該接着剤組成物は、異方導電性接着剤である接着剤組成物。 - 前記膜形成樹脂は、ポリエステル樹脂又はポリウレタン樹脂である、請求項3記載の接着剤組成物。
- 前記膜形成樹脂の酸価は、1KOHmg/g以上である、請求項4に記載の接着剤組成物。
- 前記カルボジイミド系化合物の含有量は、前記カルボキシ基を有する化合物の総質量に対して、5質量%以上である、請求項1又は3に記載の接着剤組成物。
- 前記接着剤組成物は、導電粒子をさらに含む、請求項1又は2に記載の接着剤組成物。
- 前記カルボジイミド系化合物の含有量は、前記カルボキシ基を有する化合物の総質量に対して、30質量%以下である、請求項1乃至7のいずれか1項に記載の接着剤組成物。
- 前記アクリレート系化合物は、(メタ)アクリレート樹脂である、請求項1~8のいずれか一項に記載の接着剤組成物。
- 前記重合開始剤は、ラジカル系重合開始剤である、請求項1~9のいずれか一項に記載の接着剤組成物。
- 前記接着剤組成物は、フィルム状に設けられる、請求項1~10のいずれか一項に記載の接着剤組成物。
- 請求項1~11のいずれか一項に記載の接着剤組成物と、
前記接着剤組成物を介して接着された第1の電子部品及び第2の電子部品と、
を備える、接続構造体。 - 請求項1~11のいずれか一項に記載の接着剤組成物を第1の電子部品と、第2の電子部品との間に設け、前記第1の電子部品又は前記第2の電子部品の側から加圧することで、前記第1の電子部品及び前記第2の電子部品を接続する、接続構造体の製造方法。
- 膜形成樹脂と、アクリレート系化合物と、重合開始剤と、カルボジイミド系化合物と、を含有し、前記膜形成樹脂又は前記アクリレート系化合物の少なくとも1つ以上は、カルボキシ基を有する化合物であり、前記カルボジイミド系化合物の含有量は、前記カルボキシ基を有する化合物の総質量に対して、5質量%以上150質量%以下であり、当該接着剤組成物は、熱硬化性接着剤である接着剤組成物と、前記接着剤組成物を介して接着された第1の電子部品及び第2の電子部品と、を備える、接続構造体。
- 膜形成樹脂と、アクリレート系化合物と、重合開始剤と、カルボジイミド系化合物と、を含有し、前記膜形成樹脂又は前記アクリレート系化合物の少なくとも1つ以上は、カルボキシ基を有する化合物であり、前記カルボジイミド系化合物の含有量は、前記カルボキシ基を有する化合物の総質量に対して、5質量%以上150質量%以下であり、当該接着剤組成物は、熱硬化性接着剤である接着剤組成物を第1の電子部品と、第2の電子部品との間に設け、前記第1の電子部品又は前記第2の電子部品の側から加圧することで、前記第1の電子部品及び前記第2の電子部品を接続する、接続構造体の製造方法。
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